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Plasma Speaker

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eeict2015-43-kovar.pdf (797.1Kb)
Date
2015
Author
Kovář, J.
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Abstract
The article describes the design and construction of one-channel plasma speaker. Absence of mechanical membrane gives the plasma speaker no frequency limitation. The design consists of power source to supply control electronic for signal modulation, converter and output transformer. Modulation of audio signal is realized by integrated circuit TL 594 that provides the PWM modulation. Duty cycle and frequency is adjusted by potentiometers. Dual forward converter is used to voltage amplification. High voltage discharge between the electrodes on the secondary winding is modulated by the PWM signal and produces sound.
Keywords
Plasma, PWM modulation, convertor, frequency
Persistent identifier
http://hdl.handle.net/11012/42925
Document type
Peer reviewed
Document version
Final PDF
Source
Proceedings of the 21st Conference STUDENT EEICT 2015. s. 43-45. ISBN 978-80-214-5148-3
http://www.feec.vutbr.cz/EEICT/
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  • Student EEICT 2015 [169]
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